Self-oiling power-pump



PLA. MYERS SELF OILING POWER PUMP APPLICATION mm] NOV. 13, 1919,

Patemnad July W, 192i,

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UNITED STATES PATENT OFFICE.

PHILIP A. MYERS, O]? ASHLAND, OHIO, ASSIGNOR TO I. E. MYERS AND BROTHER, OF ASHLAND, OHIO, A COPARTNERSHIP CONSISTING OF FRANCIS E. MYERS AND rmn A. mm.

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Application filed November 13, 1919. Serial No. 337,644.

To whom it'mwy concern Be it known that I, PHILIP A. Mme, a

citizen of the United States, residii at Pumps, of which the following is a specification, reference being had therein to the,

accompanying drawing. 1

This invention relates to self-oilin power pumps, and has for its particular 0 ect to provide an improved self-oiling system for power pumps of the general type disclosed in my co ending application for Letters Patent Semal #185,248, filed August 9, 1917.

A particular object of the invention'is to provide self-oiling means for the pitman and piston head hearing, or rather to provide a modified construction of the power head casing as distinguished from the casing construction shown inmy copending appllcation above referred to, whereby the selfoilin of the pitman and piston head bearing will e efiected by the standard operable parts of thepower headg'. I

A further object of the present invention isto provide a further modification of the ower head casing construction relative to t e stufling box interposed'between the power head casing and the pump cylinder, whereby water accumulating from seepage throughthe stufiing box'will not fiow into the power head casing and affect the oil therein. 7 While the inventlon is in the nature of re finements and of simple mechanical forms that do not add materially to manufacturing costs, it adds nevertheless materially to the efficiency, of operation of the power ead as, obviously, a mixture of water with the oil will depreciate the lubricating qualities of the oil, and insufficient lubrication of any of the operableparts, as of the pitman and piston head bearing, will aflect adversely the operation of the power head as a whole, both' conditions being corrected by the present in vention.

In the accompanying drawings Figure 1 is a longitudinal sectional ,view" of a power head having the improved selfoiling and water drain applied thereto, and .Fig. 2 is a cross-sectional view taken on the line 2'2 of Fig. 1.'

Speciflcation of Letters Patent. Patented July 19, 1921.

by convenient access to the interior of the casing .is provided. A guide cylinder 5 is also preferably formed integrally with the casingand serves as a support and guide for the piston head 6. The crank shaft 7 is "mounted in-suitable bearings (not shown) secured in the opposite sides of the casing 1, and the crank arm or itman is connected to the crank shaft by t e usual construction consisting of the eccentric disk 8 and the cooperating band or collar 9 of the pitman. The opposite end 10 of the pitman is con nected to the piston head 6 in the usual manner by means of a transverse bearing shaft 11, an oil aperture 13 being formed in the end of the pitman and another oil aperture 12 op osite the same in the piston head where y in .11.

he power head may be operated from any suitable source of power by effecting opoil will be'admitted to the bearerable connections with the drive shaft 1 1 which has secured thereto internally of the casing 1', a pinion 15 meshing with a gear 16 secured to the crank shaft. The crank casing is normally supplied with oil of sufficient quantity or required depth to cause a portion o'f. the gear 16 and the lower portion of the disk 8 and collar 9 to be immersed therein, thus with the operation of the power head portions of the oil will be splashed upwardly against .the upper wall-of the casin over the pinion 15 and into the" space 1? above the shelf 18 which is disposed transyersely'of the casing 1 and serves to drain through a discharge aperture 19 portions of the oil into the oil apertures 12' and 13 and to the bearing 11. 7

Thus, with the operation, of the power head, all portions-of the operable parts within the crank casing will be constantly self a portionof the surface being exposed as it travels beneath the discharge aperture 19, and thus coming in contact with the oil. flowing from the shelf 18. The excess oil flowing from the piston head'and bearing 11 is returned to the pump or oil reservoir in the "oiled, the oil flowing through the aperture 12, serving also to oil more thoroughly the working surface of the piston guide head 6,

construction, is mounted, as here shown,

relative to the power head with the pump cylinder- 21 and piston or plunger 22 in alinement with the piston head 6 and guide cylinder 5, a piston rod 23 connecting the piston tothe piston head in the usual form of construction.

As here slio'wn,.a cylinder head 24 is em ployed to serve the double purpose of a closure for both the power head and pump case be mounted interchangeably on a single 10 ing, the cylinder head being of novel construction whereby a plurality of pumps may po'wer'head as set forth in a copending application for letters Patent.

The cylinder head 24 also is provided with suitable means to form part of a stuflingbox 25, other parts of thestufiing box, 26, 27 and '28, being secured to or supported by the head 24, the details of construction and arrangement not being claimed as a part ofthe present invention. J

The opposite sides of the casing l'are open t'o' the atmosphere, as shown at 29, and the member 27 of the stufiing box, as here shown,

- is provided with air apertures 30, which relieve thepressure about the piston rod at this point and tend to prevent the see age of water from. thepump casing throug the outer member 28 of the stuifing box. The

stufling boxlpacking 31 acts further to prevent seepage of water along the piston red. It has been found practically impossible in the operation of power pumps of this character to effectually prevent seepage of more or less-water along the piston rod, notwithstanding the use of the'most effective forms of stufiing box construction. Under the most favorable conditions,the seepage is of sufficient extent that the water, ifpermittedto be drained intothe gear casing of the power head, will in a short time render ineffective the lubricating qualities of'the oil therein.

Means are provided inIthe present invention therefore to cause the water todrain from the stuffing box'and the piston rod into a water receptacle 32 adjacent the gear casing,fromwh1ch the water may be discharged through a drain 33, and thus beprevented from flowing into the crank casing.

While the v improvements of the power head casingcomprised in the present invention add but very little, if any, to manufacturing costs, both the self-oiling feature of the piston head and piston head bearing and thewater drain from the stufling box being made'as here shown, integrally with the main casing, the effect of the improvements on the operation of the power head is of material consequence with respect to both the eificiency and economy of operation.

| In event that the drain 33 should become pitman connections mounted in said casing,

comprising. a pitman head, a piston head caring and pitman crank bearing in the piston head, an oil aperture in the )iston head bearing, an oil aperture arrange relative thereto in the end of the pitman, an oil aperture in the casing and an oil; guide leading thereto, whereby upon the operation of the power head mechanism parts thereof will contact with the oil and cause portions of the latter to be conveyed by the guide to and through the casing to the piston head and piston head bearing and to and through the pitman to the crank bearing. 7

2. In a power head, the combination with a gear casing adapted to contain a supply of oil, a pump adapted togbe arranged in operative relation tosaid-power head, a studing box interposed between said pump and the gear casing-and a pistonrod operating through said stufiing box, of a rece tacle for liquid arranged adjacent the stu ng box and between the pump and the gear casing, and means to conduct liquid escaping through the stuflingbox fromthe pump casing into said receptacle one of whose walls is lower than the wall dividing it from the gear casing whereby the liquid ma automatically escapeand overflow into tie gear casing is prevented.

3. .In a power head, the combination with a gear'casing ada ted to contain a supply of oil, a pump adapted to be arranged in operative relatlonto said power head, a stuffngboxinterposed between said pump and the gear casing and a piston rod operating through saidstufiing box, of a receptacle for liquid arranged'adjacent the stuffing box and between thepump and the gear casing, and means to conduct liquid' escaping through thestufiing box from the pump casing into said receptacle, one offwhose wallsis lower than the wall dividing i't from the gear casing whereby the liquid may automatically escape and overflow into the gear casing is prevented.

I through said stuifing box, of a receptacle for said receptacle, one of whose wells is lower liquid disposed transversely of the gear casthan the Wall dividing it from the gear easing adjacent the stuffing box, between the ing whereby the liquid may automatically 10 pump andgear casing d l i o a drain escape and overflow lnto the gear casing is 5 aperture to discharge li uid therefrom, and prevented. I

means to ond ct li ui escaping th h In testimony whereof I aifix my signature. the stuffing box from the purnp easing into PHILIP A. MYERS. 

